Key Butler is an easy to use and powerful personal access control system. It lets you use your smartphone to replace keys. You don't have to carry bulky and heavy mechanical keys anymore; And you don't have to carry access control cards or remembering passswords either. No more need to replace a lock if keys are lost. Besides, Key Butler is also a powerful management center.
PKinno Inc. is the developer of Key Butler which is included in the Lifestyle category. Over 1K users downloaded and installed the tool and its most recent update was on Sep 2, 2017. On Google Play, this application is rated 4.2 by its users.
Get the setup package of Key Butler 1.3.5 that is completely free and take a look at users' reviews on Droid Informer. The app can be launched flawlessly on Android 3.0 and above. The app is completely safe to download.